check engine NISSAN VERSA 2006 Workshop Service Repair Manual

TIMING CHAIN
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19. Fully lift up lever (A), and push the slack guide (B) into the inside
of chain tensioner (for oil pump) (1).

The slack guide is released by fully lifting the lever up. As the
result, the slack guide can be moved.
20. Matching the hole on lever with the hole on tensioner body,
insert a stopper pin (C) to secure slack guide.
NOTE:
Use approximately 1.0 mm (0.04 in) diameter. hard metal pin as
a stopper pin.
21. Remove chain tensioner (for oil pump).

When the holes on lever and tensioner body cannot be aligned, align these holes by slightly moving the
slack guide.
22. Hold the WAF part of oil pump shaft (A), and then loosen the oil pump sprocket bolt and remove them.
CAUTION:

Secure the oil pump shaft with the WAF part.

Never loosen the oil pump sprocket bolt by tightening the
oil pump drive chain.
23. Remove crankshaft sprocket, oil pump sprocket and oil pump drive chain as a set.
24. Remove timing chain tension guide (front cover side) from front cover if necessary.
INSPECTION AFTER REMOVAL
Timing Chain

Check timing chain and oil pump drive chain for cracks (A) and
any excessive wear (B) at the roller links of timing chain.

Replace timing chain and/or oil pump drive chain if necessary.
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1 : Oil pan (upper)
2 : Oil pump
: Engine front
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TIMING CHAIN
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4. Hold the WAF part of oil pump shaft (A), and then tighten the oil
pump sprocket bolt.
CAUTION:

Secure the oil pump shaft with the WAF part.

Never loosen the oil pump sprocket bolt by tightening the
oil pump drive chain.
5. Install chain tensioner (for oil pump) (1).

Fix the plunger at the most compressed position using a stop-
per pin (A), and then install it.

Securely pull out ( ) the stopper pin after installing the chain
tensioner (for oil pump).

Check matching mark position of oil pump drive chain and
each sprocket again.
6. Align the matching marks of each sprocket with the matching
marks of timing chain.
NOTE:
*: There are 2 outer grooves in camshaft sprocket (INT). The
wider one is a matching mark.

If these matching marks are not aligned, rotate the camshaft
slightly by holding the hexagonal portion to correct the posi-
tion.
CAUTION:
Check matching mark position of each sprocket and timing
chain again after installing the timing chain.
1 : Oil pan (upper)
2 : Oil pump
: Engine front
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1 : Camshaft sprocket (EXH)
2 : Camshaft sprocket (INT)
3 : Timing chain
A : Matching mark (dark blue link)
B : Matching mark (stamping)
C : Matching mark (outer groove*)
D : Matching mark (gold link)
E : Matching mark (stamping)
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EM-44Revision: June 2006
TIMING CHAIN
2007 Versa
7. Install the timing chain tension guide (3) and the timing chain
slack guide (2).
8. Install timing chain tensioner (1).

Fix the plunger at the most compressed position using a stop-
per pin (A), and then install it.

Securely pull out the stopper pin after installing the timing
chain tensioner.
9. Check matching mark position of timing chain and each sprocket again.
10. Apply new engine oil to new front oil seal joint surface.
11. Using a suitable tool install front oil seal so that each seal lip is oriented as shown.

Press-fit front oil seal until it is flush with front end surface of
front cover as shown below with a suitable tool.
CAUTION:

Be careful not to damage front cover and crankshaft.

Press-fit oil seal straight to avoid causing burrs or tilting.

Never touch grease applied onto oil seal lip.
12. Install new O-ring to cylinder block.
1 : Timing chain
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A : Dust seal lip
B: Oil seal lip
: Engine front
: Engine rear
Within 0.3 mm (0.012 in) toward engine front
Within 0.5 mm (0.020 in) toward engine rear
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EM-46Revision: June 2006
TIMING CHAIN
2007 Versa

If needed use a plastic hammer, tap on its center portion (not circumference) to seat crankshaft
pulley.
18. Secure crankshaft pulley (1) using tool (A).
19. Apply new engine oil to thread and seat surfaces of crankshaft
pulley bolt.
20. Tighten crankshaft pulley bolt in three steps.
21. Put a paint mark (B) on crankshaft pulley (2), matching with any
one of six easy to recognize angle marks (A) on crankshaft pul-
ley bolt (1) flange.
22. Turn another 60 degrees clockwise (angle tightening) using
Tool.

Check the tightening angle with movement of one angle mark.
23. Make sure that crankshaft rotates clockwise smoothly.
24. Installation of the remaining components is in the reverse order of removal.Step 1 : 68.6 N·m (7.0 kg-m, 51 ft-lb)
Step 2 : 0 N·m (0 kg-m, 0 ft-lb)
Step 3 : 29.4 N·m (3.0 kg-m, 22 ft-lb)
PBIC3961E
Tool number : KV10112100 (BT-8653-A)
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EM-54Revision: June 2006
CAMSHAFT
2007 Versa
10. Install camshaft sprocket (EXH) (2).
NOTE:
Secure the hexagonal part (A) of camshaft (EXH) using wrench
to tighten bolt.
11. Install timing chain and related parts. Refer to EM-37, "
TIMING CHAIN" .
12. Inspect and adjust valve clearance. Refer to EM-55, "
Valve Clearance" .
13. Installation of the remaining components is in the reverse order of removal.
INSPECTION AFTER INSTALLATION
The following are procedures for checking fluids leak, lubricates leak.

Before starting engine, check oil/fluid levels including engine coolant and engine oil. If less than required
quantity, fill to the specified level. Refer to GI-46, "
Recommended Chemical Products and Sealants" .

Use procedure below to check for fuel leakage.
–Turn ignition switch “ON” (with engine stopped). With fuel pressure applied to fuel piping, check for fuel
leakage at connection points.
–Start engine. With engine speed increased, check again for fuel leakage at connection points.

Run engine to check for unusual noise and vibration.
NOTE:
If hydraulic pressure inside timing chain tensioner drops after removal/installation, slack in the guide may
generate a pounding noise during and just after engine start. However, this is normal. Noise will stop after
hydraulic pressure rises.

Warm up engine thoroughly to make sure there is no leakage of fuel, or any oil/fluids including engine oil
and engine coolant.

Bleed air from lines and hoses of applicable lines, such as in cooling system.

After cooling down engine, again check oil/fluid levels including engine oil and engine coolant. Refill to the
specified level, if necessary.
Summary of the inspection items:
* Transmission/transaxle/CVT fluid, power steering fluid, brake fluid, etc.
Inspection of Camshaft Sprocket (INT) Oil Groove
CAUTION:

Perform this inspection only when DTC P0011 is detected in self-diagnostic results of CONSULT-II
and it is directed according to inspection procedure of EC section. Refer to EC-47, "
ON BOARD
DIAGNOSTIC (OBD) SYSTEM" .

Check when engine is cold so as to prevent burns from the splashing engine oil.
1. Check engine oil level. Refer to LU-5, "
ENGINE OIL LEVEL" .
2. Perform the following procedure so as to prevent the engine from being unintentionally started while
checking.
a. Remove intake manifold. Refer to EM-18, "
Components" .
1 : Camshaft sprocket (INT)
Camshaft sprocket
bolt (EXH): 88.2 N·m (9.0 kg-m, 65 ft-lb)
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Item Before starting engine Engine running After engine stopped
Engine coolant Level Leakage Level
Engine oil Level Leakage Level
Other oils and fluid* Level Leakage Level
Fuel Leakage Leakage Leakage
Exhaust gases — Leakage —

CAMSHAFT
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b. Disconnect ignition coil and injector harness connectors.
3. Remove intake valve timing control solenoid valve. Refer to EM-37, "
Components" .
4. Clean the mating area of intake valve timing control solenoid
valve. Insert a clean shop cloth (with no oil adhesion) into the oil
hole (A) of the cylinder head.
5. Install engine mounting bracket (RH), engine mounting insulator,
and torque rod (RH) under the Step 4 condition. (With intake
valve timing control solenoid valve removed, and a shop cloth
inserted into the oil hole.) Refer to EM-73, "
Components" .
6. Crank engine, and then make sure that engine oil comes out
from intake valve timing control solenoid valve hole (A). End crank after checking.

Check engine oil leakage by oil amount adhered to the waste inserted into the oil hole.
WAR NIN G:
Be careful not to touch rotating parts (drive belts, idler pulley, and crankshaft pulley, etc.).
CAUTION:

Do not perform cranking without installing right engine mount bracket, right engine mount insu-
lator, and right torque rod.

Prevent splashing by using a shop cloth so as to prevent the worker from injury from engine oil
and so as to prevent engine oil contamination.

Prevent splashing by using a shop cloth so as to prevent engine oil from being splashed to
engine and vehicle. Especially, be careful not to apply engine oil to rubber parts of drive belts,
engine mounting insulator, etc. Wipe engine oil off immediately if it is splashed.
7. Perform the following inspection if engine oil does not come out from intake valve timing control solenoid
valve oil hole of the cylinder head.

Remove oil filter (for intake valve timing control), and then clean it. Refer to EM-77, "Components" .

Clean oil groove between oil strainer and intake valve timing control solenoid valve. Refer to LU-4,
"LUBRICATION SYSTEM" .
8. Remove components between intake valve timing control solenoid valve and camshaft sprocket (INT),
and then check each oil groove for clogging.

Clean oil groove if necessary. Refer to LU-4, "LUBRICATION SYSTEM" .
9. Installation of the remaining components is in the reverse order of removal
Valv e C le aranceEBS00U7Q
INSPECTION
Perform inspection as follows after removal, installation or replacement of camshaft or valve-related parts, or if
there is unusual engine conditions regarding valve clearance.
1. Remove rocker cover. Refer to EM-30, "
IGNITION COIL, SPARK PLUG AND ROCKER COVER" .
2. Measure the valve clearance with the following procedure:
a. Set No. 1 cylinder at TDC of its compression stroke.

Rotate crankshaft pulley (1) clockwise and align TDC mark (no paint) (B) to timing indicator (A) on front
cover.
1 : Front cover
:Vehicle front
WBIA0781E
C : White paint mark (Not use for service)
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EM-62Revision: June 2006
CYLINDER HEAD
2007 Versa
CYLINDER HEADPFP:11041
On-Vehicle ServiceEBS00T6K
CHECKING COMPRESSION PRESSURE
1. Warm up engine thoroughly. Then, stop it.
2. Release fuel pressure. Refer to EC-81, "
FUEL PRESSURE RELEASE" .
3. Disconnect fuel pump fuse (1) to avoid fuel injection during mea-
surement.
4. Remove engine cover. Refer to EM-18, "
Components" .
5. Remove ignition coil and spark plug from each cylinder. Refer to EM-30, "
IGNITION COIL, SPARK PLUG
AND ROCKER COVER" .
6. Connect an engine tachometer (not required in use of CONSULT-II).
7. Install a suitable compression tester with an adapter onto spark
plug hole.

Use the adapter whose picking up end inserted to spark plug
hole is smaller than 20 mm (0.79 in) in diameter. Otherwise, it
may be caught by cylinder head during removal.
8. With accelerator pedal fully depressed, turn ignition switch to “START” for cranking. When the gauge
pointer stabilizes, read the compression pressure and the engine rpm. Perform these steps to check each
cylinder.
Compression pressure:
Unit: kPa (bar, kg/cm2 psi) /rpm
CAUTION:
Always use fully a changed battery to obtain the specified engine speed.
: Vehicle front
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Standard Minimum Differential limit between cylinders
1,500 (15.0, 15.3, 217.6) / 200 1,200 (12.0, 12.2, 174) / 200 100 (1, 1, 15) / 200

CYLINDER HEAD
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If the engine speed is out of the specified range, check battery liquid for proper gravity. Check engine
speed again with normal battery gravity.

If compression pressure is below minimum value, check valve clearances and parts associated with
combustion chamber (Valve, valve seat, piston, piston ring, cylinder bore, cylinder head, cylinder head
gasket). After the checking, measure the compression pressure again.

If some cylinder has low compression pressure, pour small amount of engine oil into the spark plug hole
of the cylinder to re-check it for compression.
–If the added engine oil improves the compression, piston rings may be worn out or damaged. Check
piston rings and replace if necessary.
–If the compression pressure remains at low level despite the addition of engine oil, valves may be mal-
functioning. Check valves for damage. Replace valve or valve seat accordingly.

If two adjacent cylinders have respectively low compression pressure and their compression remains
low even after the addition of engine oil, cylinder head gasket is leaking. In such a case, replace cylin-
der head gasket.
9. After inspection is completed, install removed parts.
10. Start the engine, and confirm that the engine runs smoothly.
11. Perform trouble diagnosis. If DTC appears, erase it. Refer to EC-83, "
TROUBLE DIAGNOSIS" .
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Removal and InstallationEBS00U7S
REMOVAL
WA RN ING:

Put a “CAUTION: FLAMMABLE” sign in the workshop.

Be sure to work in a well ventilated area and furnish workshop with a CO2 fire extinguisher.

Do not smoke while servicing fuel system. Keep open flames and sparks away from the work area.
1. Release the fuel pressure. Refer to EC-81, "
FUEL PRESSURE RELEASE" .
2. Drain engine coolant and engine oil. Refer to CO-8, "
ENGINE COOLANT" and LU-5, "ENGINE OIL" .
3. Remove front fender protector (RH). Refer to EI-22, "
FENDER PROTECTOR" .
4. Remove drive belt. Refer to EM-13, "
Removal and Installation" .
5. Remove the following components and related parts.

Exhaust manifold; Refer to EM-21, "EXHAUST MANIFOLD" .

Intake manifold; Refer to EM-18, "INTAKE MANIFOLD" .

Fuel tube and fuel injector assembly; Refer to EM-33, "FUEL INJECTOR AND FUEL TUBE" .
1. Cylinder head assembly 2. Cylinder head bolt 3. Cylinder head gasket
A. Refer to EM-65
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EM-64Revision: June 2006
CYLINDER HEAD
2007 Versa

Water outlet; Refer to CO-20, "WATER OUTLET AND WATER CONTROL VALVE" .

Rocker cover; Refer to EM-30, "IGNITION COIL, SPARK PLUG AND ROCKER COVER" .

Front cover, timing chain; Refer to EM-37, "TIMING CHAIN" .

Camshaft; Refer to EM-47, "CAMSHAFT" .
6. Remove cylinder head.

Loosen bolts in reverse order as shown.

Using TORX socket (size E18), loosen cylinder head bolts.
7. Remove cylinder head gasket.
INSPECTION AFTER REMOVAL
Cylinder Head Bolts Outer Diameter

Cylinder head bolts are tightened by plastic zone tightening
method. Whenever the size difference between “d1” and “d2”
exceeds the limit, replace them with a new one.

If reduction of outer diameter appears in a position other than
“d2”, use it as “d2” point.
Cylinder Head Distortion
NOTE:
When performing this inspection, cylinder block distortion should be also checked. Refer to EM-98, "
CYLIN-
DER BLOCK TOP SURFACE DISTORTION" .
1. Wipe off engine oil and remove water scale (like deposit), gasket, sealant, carbon, etc. with a scraper.
CAUTION:
Use utmost care not to allow gasket debris to enter passages for engine oil or water.
2. At each of several locations on bottom surface of cylinder head,
measure the distortion in six directions using straightedge (A)
and feeler gauge (B).

If it exceeds the limit, replace cylinder head.
: Engine front
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Limit (“d1” – “d2”): 0.15 mm (0.0059 in)
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Limit: 0.1 mm (0.004 in)
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CYLINDER HEAD
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INSTALLATION
1. Install cylinder head gasket.
2. Apply new engine oil to threads and seating surface of bolts.
CAUTION:
If cylinder head bolts re-used, check their outer diameters before installation. Refer to EM-64, "
Cyl-
inder Head Bolts Outer Diameter" .
3. Install cylinder head, follow the steps below to tighten cylinder
head bolts in numerical order as shown.
: Engine front
CAUTION:
Check and confirm the tightening angle by using Tool (A) or
protractor. Never judge by visual inspection without the
tool.
4. Installation of the remaining components is in the reverse order of removal.Step a : 40 N·m (4.1 kg-m, 30 ft-lb)
Step b : 100° clockwise
Step c : Loosen to 0 N·m in the reverse order of
tightening.
Step d : 40 N·m (4.1 kg-m, 30 ft-lb)
Step e : 100° clockwise
Step f : 100° clockwise
Tool number : KV10112100 (BT-8653-A)
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